| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.commons.math4.legacy.analysis.interpolation; |
| |
| import org.apache.commons.math4.legacy.exception.DimensionMismatchException; |
| import org.apache.commons.math4.legacy.exception.NoDataException; |
| import org.apache.commons.math4.legacy.exception.NonMonotonicSequenceException; |
| import org.apache.commons.math4.legacy.exception.NullArgumentException; |
| import org.apache.commons.math4.legacy.core.MathArrays; |
| |
| /** |
| * Generates a piecewise-bicubic interpolating function. |
| * |
| * @since 2.2 |
| */ |
| public class PiecewiseBicubicSplineInterpolator |
| implements BivariateGridInterpolator { |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public PiecewiseBicubicSplineInterpolatingFunction interpolate( final double[] xval, |
| final double[] yval, |
| final double[][] fval) |
| throws DimensionMismatchException, |
| NullArgumentException, |
| NoDataException, |
| NonMonotonicSequenceException { |
| if ( xval == null || |
| yval == null || |
| fval == null || |
| fval[0] == null ) { |
| throw new NullArgumentException(); |
| } |
| |
| if ( xval.length == 0 || |
| yval.length == 0 || |
| fval.length == 0 ) { |
| throw new NoDataException(); |
| } |
| |
| MathArrays.checkOrder(xval); |
| MathArrays.checkOrder(yval); |
| |
| return new PiecewiseBicubicSplineInterpolatingFunction( xval, yval, fval ); |
| } |
| } |